我试图安装firewatir,并得到了以下错误。我将非常感谢你的帮助。Successfully installed firewatir-1.9.4file 'def_wrap=R,def_wrap_guard=R,def_creator=R,def_creator_with_default=R' not found
每当我试图与Watir元素交互时,我都会得到以下错误。/Library/Ruby/Gems/2.0.0/gems/watir-6.0.1/lib/watir/wait/timer.rb:40:in `current_time': undefined method`now' for Watir::Time:Class (NoMethodError)
from /Library/R